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- W3150335925 endingPage "120686" @default.
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- W3150335925 abstract "The aim to reduce well to wheel CO2 emissions incentives the utilisation of alternative fuels (low to zero carbon content and/or low well to tank CO2 emissions) as well as the enhancement of engine efficiency. In parallel, the reduction of engine tailpipe CO2 emissions brings new challenges such as the decrease of the exhaust gas temperature. This trend penalises the ability of the exhaust aftertreatment system to eliminate pollutant emissions. In addition, the combustion of alternative fuels and new combustion modes induce changes in the nature and concentration of the exhaust species, which is known to affect the pollutants abatement mechanisms. This investigation provides new understanding on the sensitivity of pollutants abatement in oxidation catalysts to the use of alternative fuels. The studied fuels are conventional diesel, alternative fuels (rapeseed methyl ester and gas to liquid) as well as propane using a dual-fuel combustion strategy. The research combines experimental conversion efficiency from genuine exhaust gases with modelling work useful to explain the reasons for the change in light-off temperature as a function of the fuel. In addition to the CO and NO impact, HC surrogates are proposed distinguishing species of different reactivity for each fuel based on the experimental HC speciation. The results highlight the role of the engine-out emissions on the pollutants conversion efficiency. Their fashion with different fuels contributes to evidence the interest for low engine-out emissions along with low light alkanes content in total HC, as promoted by alternative fuels, to reduce the oxidation light-off temperature." @default.
- W3150335925 created "2021-04-13" @default.
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- W3150335925 date "2021-08-01" @default.
- W3150335925 modified "2023-09-23" @default.
- W3150335925 title "Sensitivity of pollutants abatement in oxidation catalysts to the use of alternative fuels" @default.
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- W3150335925 doi "https://doi.org/10.1016/j.fuel.2021.120686" @default.
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